Reactivemongo

The 2017 Stack Overflow Developers Survey had the most respondents since they began the project in 2011. You really should take a look. They cover a lot of ground, and the findings across geography and demographics are fascinating.
It’s interesting most developers report feeling underpaid. That isn’t surprising to me, but it might be counterintuitive to people more accustomed to Stark Industries than to Pied Piper. It’s natural to follow up by asking which programming languages pay the most, and those answers did surprise me.